CN205442401U - Falling preventing device for lifting hook - Google Patents

Abstract

The utility model belongs to the technical field of falling preventing device for lifting hook, the security of lifting hook at the hoist and mount in -process can effectively be guaranteed to the anticreep device of a concretely relates to lifting hook, concrete technical scheme does: falling preventing device for lifting hook, including lifting hook, arc and dog, the arc is the lot arc that the circular arc was made along the lifting hook outside, the upper end of arc and staple bolt welding together, the staple bolt passes through bolt swing joint on the lifting hook, the lower extreme of arc is articulated with the upper end of separation blade, the lower extreme of separation blade is connected through the steel wire with the lower extreme of dog, the upper end of dog hinges closed mouthful of the gib head of lifting hook, the lower extreme of dog is around the switching of the articulated department rotation realization gib head of upper end, the elasticity pressure equipment has a spring between dog and the lifting hook, and the spring plays the effect of return, the utility model discloses when using, only need an operator independently to accomplish convenient operation, safe and reliable in whole operation process.

Description

A kind of lifting hook looseness preventing device

Technical field

This utility model belongs to lifting hook looseness preventing device technical field, is specifically related to the anti-drop device of a kind of suspension hook, it is possible to suspension hook safety in hoisting process is effectively ensured.

Background technology

According to the requirement of GB6067.1-2010 " safety rules for lifting appliances ", lifting hook looseness preventing device (also referred to as anticreep rope band blocking device), when using crane hanging component goods, for preventing goods from surprisingly breaking off relations, should be installed on suspension hook by enterprise.Tradition lifting hook looseness preventing device, i.e. torsion shrouding formula suspension hook, its anticreep shrouding is articulated with at hook neck.One, mounting structure is unreasonable, suspension hook is fixed hanger width too narrow, and anti-drop device is only fixed by biside plate, fixing rear anti-drop device all right left and right play, it is easy to make connecting bolt flexural deformation and back-moving spring damage.Its two, connect use plain bolt, nut cannot pretension cause nut easily loosen and come off, cause anti-drop device to lose efficacy, personal safety and site safety to live operator cause great potential safety hazard.Its three, tradition anti-drop device be made up of double torsion spring and safety card, the limitation designed, production process uses very inconvenient.

It addition, traditional anti-drop device, when unloading goods, it is motionless that a hands of operator fixes suspension hook, and it is motionless that another hands holds goods, in addition it is also necessary to another one operator coordinates breaks off relations steel wire rope.

Utility model content

For solving the technical problem that in the suspension hook hoisting process that prior art exists, poor safety performance, lifting hook looseness preventing device gross distortion and back-moving spring damage, this utility model provides a kind of novel lifting hook looseness preventing device, ensure not have towing hook phenomenon when using crane hanging component goods in production scene, it is possible to effectively prevent anti-drop device to lose efficacy.

For achieving the above object, the technical scheme that this utility model is used is: a kind of lifting hook looseness preventing device, including suspension hook, arc and block, arc is one piece of arc made along suspension hook external arc, the upper end of arc welds together with anchor ear, anchor ear is movably connected on suspension hook by bolt, the lower end of arc and the upper end thereof of catch, the lower end of catch is connected by steel wire with the lower end of block, the upper end thereof of block closes mouth at the gib head of suspension hook, the lower end of block rotates the opening and closing realizing gib head around the hinged place of upper end, between block and suspension hook, elasticity is pressed with spring, spring plays the effect of return.

One end of steel wire is hinged on the lower end of catch, the other end of steel wire is hinged on the lower end of block, arc, catch, steel wire and block are together to form a four-bar linkage structure, are realized the opening and closing of suspension hook gib head by the rotation of block, to ensure suspension hook security performance in hoisting process.

The lower end of catch forms a handle that can grip, and is controlled the rotation of block by swing handle.

This utility model in use, has only to operator's complete independently in whole operating process, easy to operate, safe and reliable.And the spring of reset does not interferes with the normal use of suspension hook, device intensity is high, is unlikely to deform, it is to avoid the damage that mutual extruding causes.Connected mode of the present utility model uses self-locking nut and rivet, and device entirety is solid and reliable, low cost of manufacture, good economy performance.

Accompanying drawing explanation

Fig. 1 is the structural representation under suspension hook gib head Guan Bi mouth closure state.

Fig. 2 is the structural representation under suspension hook gib head Guan Bi mouth open mode.

Fig. 3 is the structural representation of block.

Fig. 4 is the schematic cross-section of block.

Fig. 5 is the structural representation of steel wire.

Fig. 6 is the structural representation of handle.

Fig. 7 is the mounting structure schematic diagram of block.

In figure, 1 is arc, and 2 is block, and 3 is catch, and 4 is steel wire, and 5 is Guan Bi mouth, and 6 is spring, and 7 is handle.

Detailed description of the invention

In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.

As shown in figs. 1-7, a kind of lifting hook looseness preventing device, including suspension hook, arc 1 and block 2, arc 1 is one piece of arc 1 made along suspension hook external arc, and the upper end of arc 1 welds together with anchor ear, and anchor ear is movably connected on suspension hook by bolt.The lower end of arc 1 is coated with a pipe, catch 3 is trench structure, the upper end of catch 3 is more than lower end, the biside plate of catch 3 upper end is installed on pipe, the lower end of catch 3 is connected by steel wire 4 with the lower end of block 2, and the upper end thereof of block 2 closes mouth 5 at the gib head of suspension hook, and the lower end of block 2 rotates the opening and closing realizing gib head around the hinged place of upper end, between described block 2 and suspension hook, elasticity is pressed with spring 6, and spring 6 also functions to the effect resetted simultaneously.

One end of steel wire 4 is hinged on the lower end of catch 3, the other end of steel wire 4 is hinged on the lower end of block 2, arc 1, catch 3, steel wire 4 and block 2 are together to form a four-bar linkage structure, the opening and closing of suspension hook gib head is realized, to ensure suspension hook security performance in hoisting process by the rotation of block 2.

The lower end of catch 3 forms a handle that can grip 7, and handle 7 is riveted on handle 7, is controlled the rotation of block 2 by swing handle 7.

This utility model improves design on the basis of former anti-drop device, design improves the movement effects of block 2, suspension hook is when lifting goods, urged clockwise handle 7, handle 7 rotates and passes through steel wire 4 and drives block 2 to rotate, and catch 3 moves to fixed position, block 2 clockwise movement, the Guan Bi mouth 5 of gib head is opened, and puts into rope.Putting after rope completes, reversely promote handle 7, block 2 is under the effect of spring 6, and Guan Bi completes, and after suspension hook rigging out, when unloading goods, repeats to open, closed action, completes lifting cargo action.This utility model possesses preferable safety and stability, economical and practical, eliminates the potential safety hazard that lifting hook looseness preventing device exists, has preferable promotional value.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, in the range of all should wrapping in this utility model.

Claims (2)

1. a lifting hook looseness preventing device, including suspension hook, it is characterized in that, also include arc (1) and block (2), the upper end of described arc (1) is fixed on the outer wall of suspension hook, the lower end of arc (1) and the upper end thereof of catch (3), the lower end of catch (3) is connected by steel wire (4) with the lower end of block (2), the upper end thereof of block (2) is at the Guan Bi mouth (5) of suspension hook gib head, the lower end of block (2) rotates the opening and closing realizing gib head around the hinged place of upper end, and between described block (2) and suspension hook, elasticity is pressed with spring (6).

A kind of lifting hook looseness preventing device the most according to claim 1, it is characterised in that one end of described steel wire (4) is hinged on the lower end of catch (3), and the other end of steel wire (4) is hinged on the lower end of block (2).